NSW state-insurer icare has notified regulators of a privacy breach after employer cost of claims reports were sent to the wrong employer or broker in a mistake attributed to human error related to manual processing.

The insurer says it took immediate action to rectify the matter as soon as it was made aware of the incident, and has been working with the Information and Privacy Commissioner NSW and third-party IDCARE to contact those who received the wrong reports and to confirm they have deleted the information.

“We are contacting individuals concerning the incident and the steps we have taken to ensure the security of their information,” icare says in a statement on its website.

“We have also commenced a comprehensive review of our systems and processes to ensure it does not happen again.”

The State Insurance Regulatory Authority has been notified of the issue, which occurred in the week of May 10.

“icare takes its privacy obligations seriously and understands the important role we play in safeguarding the information we hold about injured works,” the insurer says. “We are strengthening our controls to improve our safety measures.”

icare says the incident involved the cost of claims report for one employer being sent to a single different employer. It says 587 employers or brokers received an incorrect report, with data relating to 193,000 workers contained in the totality of the reports, which were each unique.

No personal financial information or contact details were included.

The policy number and cost of claim are included, but not personal bank details or other financial information that could potentially lead to fraud or theft, icare says.